System and method of utilizing computer-aided identification with medical procedures

ABSTRACT

The disclosure provides a system that may receive an identification of a first patient; may retrieve, based at least on the identification of the first patient, first eye identification information that includes a first plurality of iris structures associated with a first eye of the first patient; may determine a second plurality of iris structures of an eye of a current patient; may determine if the second plurality of iris structures match the first plurality of iris structures; if the second plurality of iris structures match the first plurality of iris structures, may provide an indication that the first eye has been correctly identified; and if the second plurality of iris structures do match the first plurality of iris structures, may provide an indication that the first eye has not been correctly identified.

RELATED APPLICATION

This application claims benefit under 35 U.S.C. § 119(e) of U.S.Provisional Application Ser. No. 62/899,988, entitled “SYSTEM AND METHODOF UTILIZING COMPUTER-AIDED IDENTIFICATION WITH MEDICAL PROCEDURES,”filed Sep. 13, 2019, which is incorporated herein by reference. Thisapplication claims benefit under 35 U.S.C. § 120 of U.S. patentapplication Ser. No. 17/008,301, entitled “SYSTEM AND METHOD OFUTILIZING COMPUTER-AIDED IDENTIFICATION WITH MEDICAL PROCEDURES,” filedAug. 31, 2020, which is incorporated herein by reference.

BACKGROUND Field of the Disclosure

This disclosure relates to computer-aided identification and moreparticularly to utilizing computer-aided identification with medicalprocedures.

Description of the Related Art

In the past, a failure to correctly identify a patient could result intransfusion errors, medication errors, incorrect person procedures,testing errors, and/or wrong medical procedure site errors, amongothers. Patient misidentification can be a root cause in medicalprocedure errors. Areas where patient misidentification can occurinclude surgical interventions, blood transfusions, drug administration,and/or phlebotomy, among others. Patient misidentification can be causedby name structures (e.g., close similarity of names), inaccuracies datesof births, clothing that conceals identity, non-conscious patients,errors when registering patients via computerized systems, anidentification wrist band not present, an identification wrist band thatidentifies another (e.g., incorrect) patient, etc. Furthermore, afailure to correctly identify an eye of a patient could also result intransfusion errors, medication errors, incorrect person procedures,testing errors, and/or wrong medical procedure site errors, amongothers.

SUMMARY

The present disclosure provides a system able to receive anidentification of a first patient. In one example, the system mayreceive the identification of the first patient from medical personnel.In another example, the system may receive the identification of thefirst patient via scanning a wristband of the patient. The system mayfurther retrieve, based at least on the identification of the firstpatient, first eye identification information that includes firstmultiple iris structures associated with a first eye of the firstpatient. The system may further determine second multiple irisstructures of an eye of a current patient. The system may furtherdetermine if the second multiple iris structures match the firstmultiple iris structures. If the second multiple iris structures matchthe first multiple iris structures, the system may further provide anindication that the first eye has been correctly identified. If thesecond multiple iris structures do not match the first multiple irisstructures, the system may further provide an indication that the firsteye has not been correctly identified.

The first eye identification information may further include at leastone distance measurement associated with the first eye. For example, theat least one distance measurement associated with the first eye mayinclude at least one of a distance measurement from a cornea of thefirst eye to a lens of the first eye, a distance measurement from a lensof the first eye to a retina of the first eye, a corneal thickness ofthe first eye, and a lens thickness of the first eye. The system mayfurther determine at least one distance measurement of the eye of thecurrent patient. For example, the at least one distance measurementassociated with the eye of the current patient may include at least oneof a distance measurement from a cornea of the eye of the currentpatient to a lens of the eye of the current patient, a distancemeasurement from a lens of the eye of the current patient to a retina ofthe eye of the current patient, a corneal thickness of the eye of thecurrent patient, and a lens thickness of the eye of the current patient.The system may further determine if the at least one distancemeasurement of the eye of the current patient matches the at least onedistance measurement associated with the first eye. If the secondmultiple iris structures match the first multiple iris structures andthe at least one distance measurement of the eye of the current patientmatches the at least one distance measurement associated with the firsteye, the system may perform providing the indication that the first eyehas been correctly identified. If the at least one distance measurementof the eye of the current patient does not match the at least onedistance measurement associated with the first eye, the system mayperform providing the indication that the first eye has not beencorrectly identified.

The system may further retrieve medical procedure information based atleast on one of the identification of the first patient and the secondmultiple iris structures of the eye of the current patient. The systemmay further provide, via at least one of a display and a microscopeintegrated display, the medical procedure information.

A first iris structure of the first multiple iris structures may beseparated from a second iris structure of the first multiple irisstructures by an first angle with respect to a center of a pupil of thefirst eye. A first iris structure of the second multiple iris structuresmay be separated from a second iris structure of the second multipleiris structures by a second angle with respect to a center of a pupil ofthe eye of the current patient. For example, to determine if the secondmultiple iris structures match the first multiple iris structures, thesystem may further determine if second angle matches the first angle.

The first iris structure of the first multiple iris structures may be ata first distance from the center of the pupil of the first eye. Thefirst iris structure of the second multiple iris structures may be at asecond distance from the center of the pupil of the eye of the currentpatient. For example, to determine if the second multiple irisstructures match the first multiple iris structures, the system mayfurther determine if the second distance matches the first distance.

The current patient may be the first patient. The eye of the currentpatient may be a second eye of the first patient, different from thefirst eye. In one example, the first eye may be a right eye of thepatient, and the second eye may be a left eye of the patient. In anotherexample, the first eye may be a left eye of the patient, and the secondeye may be a right eye of the patient.

The present disclosure further includes a non-transientcomputer-readable memory device with instructions that, when executed bya processor of a system, cause the system to perform the above steps.The present disclosure further includes a system or a non-transientcomputer-readable memory device as described above with one or more ofthe following features, which may be used in combination with oneanother unless clearly mutually exclusive: i) receive an identificationof a first patient; ii) retrieve, based at least on the identificationof the first patient, first eye identification information that includesfirst multiple iris structures associated with a first eye of the firstpatient; iii) determine second multiple iris structures of an eye of acurrent patient; iv) determine if the second multiple iris structuresmatch the first multiple iris structures; v) if the second multiple irisstructures match the first multiple iris structures, provide anindication that the first eye has been correctly identified; vi) if thesecond multiple iris structures do not match the first multiple irisstructures, provide an indication that the first eye has not beencorrectly identified; vii) determine at least one distance measurementof the eye of the current patient; vi) determine if the at least onedistance measurement of the eye of the current patient matches the atleast one distance measurement associated with the first eye; viii) ifthe second multiple iris structures match the first multiple irisstructures and the at least one distance measurement of the eye of thecurrent patient matches the at least one distance measurement associatedwith the first eye, perform providing the indication that the first eyehas been correctly identified; ix) if the at least one distancemeasurement of the eye of the current patient does not match the atleast one distance measurement associated with the first eye, performproviding the indication that the first eye has not been correctlyidentified; x) retrieve medical procedure information based at least onone of the identification of the first patient and the second multipleiris structures of the eye of the current patient; and xi) provide, viaat least one of a display and a microscope integrated display, themedical procedure information;

Any of the above systems may be able to perform any of the above methodsand any of the above non-transient computer-readable memory devices maybe able to cause a system to perform any of the above methods. Any ofthe above methods may be implemented on any of the above systems orusing any of the above non-transient computer-readable memory devices.

It is to be understood that both the foregoing general description andthe following detailed description are examples and explanatory innature and are intended to provide an understanding of the presentdisclosure without limiting the scope of the present disclosure. In thatregard, additional aspects, features, and advantages of the presentdisclosure will be apparent to one skilled in the art from the followingdetailed description.

BRIEF DESCRIPTION OF THE DRAWINGS

For a more complete understanding of the present disclosure and itsfeatures and advantages, reference is now made to the followingdescription, taken in conjunction with the accompanying drawings, whichare not drawn to scale, and in which:

FIG. 1A illustrates an example of a medical system;

FIG. 1B illustrates an example of a biometry device;

FIGS. 2A-2C illustrate examples of measurements associated with an eye;

FIG. 3A illustrates a second example of a medical system;

FIG. 3B illustrates another example of a medical system;

FIG. 3C illustrates an example of a microscope integrated display andexamples of surgical tooling equipment;

FIG. 4A illustrates an example of a graphical user interface thatprovides a warning or an error;

FIG. 4B illustrates an example of a graphical user interface thatprovides an indication that a patient has been correctly identified;

FIG. 4C illustrates another example of a graphical user interface thatprovides a warning or an error;

FIG. 4D illustrates an example of a graphical user interface thatprovides an indication that an eye of a patient has been correctlyidentified;

FIG. 5A illustrates an example of surgical tooling equipment proximateto an incorrect eye;

FIG. 5B illustrates an example of surgical tooling equipment proximateto a correct eye;

FIG. 5C illustrates another example of a graphical user interface thatprovides a warning or an error;

FIG. 5D illustrates an example of a graphical user interface thatprovides an indication that no errors have been identified;

FIG. 6 illustrates an example of a computer system;

FIGS. 7A and 7B illustrate an example of a method of operating a medicalsystem;

FIGS. 8A and 8B illustrate examples of measurements of structures of aniris of an eye of a patient;

FIGS. 8C and 8D illustrate examples of measurements of structures of aniris of an eye of a current patient;

FIGS. 8E and 8F illustrate examples of measurements of structures of aniris of another eye of a current patient;

FIGS. 8G-8I illustrate examples of measurements of an eye of a currentpatient; and

FIGS. 8J-8L illustrate examples of measurements of another eye of acurrent patient.

DETAILED DESCRIPTION

In the following description, details are set forth by way of example tofacilitate discussion of the disclosed subject matter. It should beapparent to a person of ordinary skill in the field, however, that thedisclosed embodiments are examples and not exhaustive of all possibleembodiments.

As used herein, a reference numeral refers to a class or type of entity,and any letter following such reference numeral refers to a specificinstance of a particular entity of that class or type. Thus, forexample, a hypothetical entity referenced by ‘12A’ may refer to aparticular instance of a particular class/type, and the reference ‘12’may refer to a collection of instances belonging to that particularclass/type or any one instance of that class/type in general.

Medical systems may be utilized to identify patients. In one example, afirst medical system may be utilized, at a first time, in identifying apatient before a medical procedure. In another example, a second medicalsystem may be utilized, at a second time, in identifying the patientbefore the medical procedure. The second time may be a later time thanthe first time. In one example, the first medical system may be utilizedat an office of a doctor. In another example, the second medical systemmay be utilized at a surgical facility.

The first medical system may associate two or more identificationattributes associated with the patient. For example, two or moreidentification attributes associated with the patient may include two ormore of a name of the patient, an address of the patient, a telephonenumber of the patient, a government issued identification number orstring of characters of the patient, a date of birth of the patient, afirst medical facility identification of the patient, and a first eyeidentification of the patient, among others. The first eyeidentification of the patient may be utilized via an eye recognitionprocess, method, and/or system to identify the patient and/or an eye ofthe patient.

The second medical system may associate two or more identificationattributes associated with the patient. For example, two or moreidentification attributes associated with the patient may include two ormore of the name of the patient, the address of the patient, thetelephone number of the patient, the government issued identificationnumber or string of characters of the patient, the date of birth of thepatient, the first medical facility identification of the patient, asecond first medical facility identification of the patient, the firsteye identification of the patient, and a second eye identification ofthe patient, among others. The second medical system may utilize an eyerecognition process, method, and/or system to obtain the second eyeidentification of the patient and to determine if the first eyeidentification of the patient and the second eye identification of thepatient match. If the first eye identification of the patient and thesecond eye identification of the patient match, a medical procedureassociated with the patient may proceed. For example, the medicalprocedure associated with the patient may include a surgical procedureassociated with the patient.

If the first eye identification of the patient and the second eyeidentification of the patient match, a medical procedure may beretrieved based at least on an identification associated with thepatient. The identification associated with the patient may include thefirst eye identification of the patient and/or the second eyeidentification of the patient. For example, a medical system mayretrieve medical procedure information from a database. The medicalsystem may retrieve the medical procedure information from a databasebased at least on the identification associated with the patient. In oneexample, the database may key multiple medical procedure information byidentifications of patients. In another example, the database may keymultiple medical procedure information by iris structures of respectiveeyes. Eye identifications of respective patients may include informationassociated with iris structures of respective one or more eyes. Eyeidentifications of respective patients may include informationassociated with one or more measurements of respective one or more eyes.The medical procedure may be automatically retrieved. For example,automatically retrieving the medical procedure may include automaticallyloading the medical procedure. The medical procedure may include apreplanned treatment. For example, the preplanned treatment may beautomatically loaded for the matching patient and/or for the matchingeye of the patient. Automatically loading the medical procedure maypermit a doctor (e.g., a surgeon) to start and/or initiate the medicalprocedure. The medical procedure may be displayed via a microscopeintegrated display and/or a display of the medical system. In oneexample, this may reduce an amount of time for the medical procedure,compared to not automatically loading the medical procedure. In anotherexample, this may reduce one or more possible errors in performing oneor more medical procedures. If the medical procedure is automaticallyloaded for the doctor, based at least on an identification associatedwith the patient, the medical procedure may not be performed on anincorrect patient.

If the first eye identification of the patient and the second eyeidentification of the patient do not match, a medical procedureassociated with the patient may not proceed. In one example, an error ora warning may be issued, which may alert medical personnel that thepatient has not been correctly identified. In another example, an erroror a warning may be issued, which may alert medical personnel that theeye of the patient has not been correctly identified.

One or more eye recognition systems, one or more eye recognitionmethods, and/or one or more eye recognition processes may be utilized ineye identification of a patient. For example, eye recognition may bebased at least on identifying a patient by analyzing patterns based atleast on one or more structures of an eye of the patient and/or one ormore shapes of one or more portions of the eye of the patient. In oneexample, eye recognition may identify eye features via extractinglandmarks and/or features from an image of the eye of the patient. In asecond example, eye recognition may identify eye features viaidentifying one or more structures of an iris of the eye of the patient.In a third example, eye recognition may identify eye features viaidentifying one or more patterns of a retina of the eye of the patient.In another example, eye recognition may identify eye features viadetermining one or more depth measurements of the eye of the patient. Adepth measurement of the eye of the patient may include a distancemeasurement from a cornea of the eye of the patient to a lens of the eyeof the patient. A depth measurement of the eye of the patient mayinclude a distance measurement from a lens of the eye of the patient toa retina of the eye of the patient. One or more eye recognition systems,one or more eye recognition methods, and/or one or more eye recognitionprocesses may determine data associated with an eye of a patient. Dataassociated with an eye of a patient may include a template. For example,a template may be distinguished from a photograph, as a template mayinclude data that may be utilized to distinguish an eye of a firstpatient from an eye of a second patient, different from the firstpatient.

One or more eye recognition systems, one or more eye recognitionmethods, and/or one or more eye recognition processes may utilizethree-dimensional techniques utilizing one or more projectors and/or oneor more sensors, among others, to determine information about a shape ofan eye of the patient. For example, the information about the shape ofthe eye of the patient may be utilized to determine one or more featuresof a surface of the eye of the patient. The one or more features of thesurface of the eye of the patient may include a contour of an eye, amongothers. An advantage of utilizing three-dimensional eye recognitiontechniques may be that three-dimensional eye recognition techniques maynot be affected by changes in lighting. One or more eye recognitionsystems, one or more eye recognition methods, and/or one or more eyerecognition processes may utilize multiple image sensors. For example,the multiple image sensors may include multiple cameras. Athree-dimensional eye recognition technique may utilize multiple imagesensors.

An eye recognition system may include one or more image acquisitiondevices. For example, the one or more image acquisition devices mayinclude one or more cameras. An eye recognition system may include oneor more light projectors. In one example, a light projector may projectinfrared light. In another example, a light projector may include alaser. An eye recognition system may determine locations on an eye ofthe patient. For example, the locations on the eye of the patient may beutilized in determining a template of the eye of the patient. Thetemplate of the eye of the patient may be associated with a topographyof the eye of the patient. The template of the eye of the patient may beutilized in eye recognition. In one example, the template of the eye ofthe patient may be compared with another template in confirming ordisaffirming an identity of the patient. In another example, thetemplate of the eye of the patient may be compared with another templatein confirming or disaffirming an identity an eye of the patient.

A medical procedure associated with the patient may include a portion ofthe patient (e.g., a site of the medical procedure). For example, theportion of the patient may be similar to another portion of the patient.For example, a right eye of the patient may be similar to a left eye ofthe patient. For example, a right eye of the patient may appear to besimilar to a left eye of the patient. The medical procedure associatedwith the patient may be for the portion of the patient and not the otherportion of the patient. For example, the medical procedure associatedwith the patient may be for right eye of the patient and not for theleft eye of the patient. The second medical system may utilize acomputer vision process, method, and/or system to determine the portionof the patient from the other portion of the patient. The computervision process, method, and/or system may utilize an eye recognitionprocess, method, and/or system to determine the portion of the patientfrom the other portion of the patient. For example, the second medicalsystem may determine that surgical tooling equipment is within an areathat is not associated with the portion of the patient. The secondmedical system may issue a warning or an error if the second medicalsystem determines that surgical tooling equipment is within an area thatis not associated with the portion of the patient. In one example, ifthe medical procedure is for the right eye of the patient (e.g., a siteof the medical procedure), the second medical system may issue a warningor an error if the second medical system determines that surgicaltooling equipment is within an area that is not associated with theright eye of the patient. In another, if the medical procedure is forthe right eye of the patient (e.g., a site of the medical procedure),the second medical system may issue a warning or an error if the secondmedical system determines that surgical tooling equipment is within anarea that is associated with the left eye of the patient.

Turning now to FIG. 1A, an example of a medical system is illustrated.As shown, a medical system 110 may be utilized with a patient 120. Asillustrated, medical system 110 may include a computer system 112.Computer system 112 may be communicatively coupled to displays 116A and116B. As an example, computer system 112 may be integrated with adisplay 116. Computer system 112 may be communicatively coupled to abiometry device 114. In one example, biometry device 114 may include oneor more cameras. In another example, biometry device 114 may include athree-dimensional scanner. Biometry device 114 may be utilized inbiometry of an eye 122 of patient 120. As shown, display 116A maydisplay an image 130A associated with eye 122 of patient 120. Asillustrated, display 116B may display an image 130B associated with eye122 of patient 120.

Computer system 112 may determine eye recognition information. Forexample, the eye recognition information may include biometryinformation associated with eye 122 of patient 120. The biometryinformation associated with eye 122 may include one or more of a patternof blood vessels of a sclera of eye 122, a structure of an iris of eye122, a position of a structure of an iris of eye 122, a distancemeasurement of a cornea of eye 122 to a lens of eye 122, a distancemeasurement of a lens of eye 122 to a retina of eye 122, a cornealtopography of eye 122, a retinal pattern of eye 122, a corneal thicknessof eye 122, a lens thickness of eye 122, and a wavefront measurement,among others.

As shown, display 116B may display a pattern of blood vessels 132 of asclera of eye 122. As illustrated, display 116B may display structuresof an iris 134A-134C of eye 122. As shown, display 116B may displaydisplay areas 136A-136D. In one example, a display area 136 may displaya distance measurement of a cornea of eye 122 to a lens of eye 122, adistance measurement of a lens of eye 122 to a retina of eye 122, aposition of a structure of an iris 134, corneal topography information,or wavefront measurement information, among other biometry informationassociated with eye 122. In another example, a display area 136 maydisplay any information associated with patient 120.

A person 150 may operate medical system 110. For example, person 150 maybe medical personnel. Person 150 may enter identification informationassociated with patient 120 into computer system 112. The identificationinformation associated with patient 120 may include one or more of aname of patient 120, an address of patient 120, a telephone number ofpatient 120, a government issued identification number of patient 120, agovernment issued identification string of patient 120, and a date ofbirth of patient 120, among others. In one example, computer system 112may associate the identification information associated with patient 120with the eye recognition information. In another example, computersystem 112 may associate the identification information associated withpatient 120 with a template.

Person 150 may verify one or more portions of the identificationinformation associated with patient 120 before computer system 112associates the identification information associated with patient 120with the eye recognition information. For example, one or more portionsof the identification information associated with patient 120 may havebeen stored, via a storage device accessible by computer system 112,before medical system 110 is utilized with patient 120. Person 150 mayconfigure data associated with a portion of patient 120. For example,person 150 may configure data associated with a right eye of patient120.

Person 150 may provide medical procedure information, associated withpatient 120, to computer system 112. The medical procedure informationmay be associated with a medical procedure. The medical procedureinformation may be associated identification information associate withpatient 120. Computer system 112 may store the medical procedureinformation. For example, computer system 112 may store the medicalprocedure information for later utilization. The medical procedureinformation may be associated with a surgery. For example, the medicalprocedure information may be retrieved before the surgery. The medicalprocedure information may be utilized during a medical procedure. Forexample, the medical procedure may include a surgery.

Turning now to FIG. 1B, an example of a biometry device is illustrated.As shown, biometry device 114 may include image sensors 160A-160C. Forexample, an image sensor 160 may include a camera. As illustrated,biometry device 114 may include light projectors 162A-162C. In oneexample, a light projector 162 may project visible light. In anotherexample, a light projector 162 may project infrared light. A lightprojector 162 may project circles and/or dots onto an eye of a patient.An image sensor 160 may receive reflections of the circles and/or thedots that were projected onto the eye of the patient. A computer systemmay determine one or more locations and/or one or more templatesassociated with the eye of the patient based at least on the reflectionsof the circles and/or the dots that were projected onto the eye of thepatient. As shown, biometry device 114 may include depth sensors164A-164C. A depth sensor 164 may include a light projector 162. A depthsensor 164 may include an optical sensor. As illustrated, biometrydevice 114 may include an optical low coherence reflectometer (OLCR)device 166. As shown, biometry device 114 may include a wavefront device168.

Wavefront device 168 may include one or more of a light source and awavefront sensor, among others. A light source may provide a first lightwave to eye 122. A wavefront sensor may receive a first perturbed lightwave, based at least on the first light wave, from eye 122. In oneexample, wavefront device 168 may determine first optical correctionsbased at least on the first perturbed light. In another example, acomputer system may determine first optical corrections based at leaston the first perturbed light. Wavefront device 168 may provide data,based at least on the first perturbed light wave, to a computer system.For example, the computer system may determine first optical correctionsbased at least on the data from wavefront device 168.

Any two or more of an image sensor 160, a light projector 162, a depthsensor 164, an OLCR device 166, and a wavefront device 168 may becombined. One or more of image sensors 160A-160C, one or more of lightprojectors 162A-162C, one or more of depth sensors 164A-164C, OLCRdevice 166, and/or wavefront device 168, among others, may produce datathat may be utilized by a computer system.

Turning now to FIGS. 2A-2C, examples of measurements associated with aneye are illustrated. As shown in FIG. 2A, measurements 210A, 212A, and214A may be associated with eye 122. In one example, measurement 210Amay be associated with a distance measurement from a cornea 220 of eye122 to a lens 222 of eye 122. In a second example, measurement 212A maybe associated with a distance measurement of lens 222 of eye 122. Inanother example, measurement 214A may be associated with a distancemeasurement from lens 222 of eye 122 to a retina 224 of eye 122.Measurements 210A, 212A, and 214A may be on axis measurements.

As illustrated in FIG. 2B, measurements 210B, 212B, and 214B may beassociated with eye 122. In one example, measurement 210B may beassociated with a distance measurement from cornea 220 of eye 122 tolens 222 of eye 122. In a second example, measurement 212B may beassociated with a distance measurement of lens 222 of eye 122. Inanother example, measurement 214B may be associated with a distancemeasurement from lens 222 of eye 122 to retina 224 of eye 122.Measurements 210B, 212B, and 214B may be off axis measurements. Forexample, measurements 210B, 212B, and 214B may be off an axis 230.Measurements 210B, 212B, and 214B may be off axis 230 in a verticaldirection. Measurements 210B, 212B, and 214B may be off axis 230 in ahorizontal direction.

As illustrated in FIG. 2C, measurements 210C, 212C, and 214C may beassociated with eye 122. In one example, measurement 210C may beassociated with a distance measurement from cornea 220 of eye 122 tolens 222 of eye 122. In a second example, measurement 212C may beassociated with a distance measurement of lens 222 of eye 122. Inanother example, measurement 214C may be associated with a distancemeasurement from lens 222 of eye 122 to retina 224 of eye 122.Measurements 210C, 212C, and 214C may be off axis measurements. Forexample, measurements 210C, 212C, and 214C may be off an axis 230.Measurements 210C, 212C, and 214C may be off axis 230 in a verticaldirection. Measurements 210C, 212C, and 214C may be off axis 230 in ahorizontal direction.

Biometry device 114 may perform measurements associated with eye 122.For example, biometry device 114 may determine one or more ofmeasurements 210, 212, and 214, among others. Measurements 210, 212,and/or 214, among others, may be utilized in determining a shape of eye122. Biometry device 114 may perform measurements associated with eye122 without contacting eye 122. For example, biometry device 114 maydetermine one or more of measurements 210, 212, and 214, among others,without contacting eye 122. OLCR device 166 may determine measurementsone or more of measurements 210, 212, and 214, among others, withoutcontacting eye 122. For example, OLCR device 166 may determine one ormore of measurements 210, 212, and 214, among others, utilizing a singlebeam interferometer or a multiple beam interferometer with a beamdeflection mechanism to determine the one or more of measurements 210,212, and 214, among others, along axis 230 (e.g., a visual axis) and/orwith a number of degrees horizontally and/or vertically from axis 230.

OLCR device 166 may include the single beam interferometer or themultiple beam interferometer and/or the beam deflection mechanism. OLCRdevice 166 may include a light source. For example, the light source mayinclude a diode. The diode may emit infrared light. In one example, theinfrared light may be associated with a wavelength of approximately 845nanometers (nm). In another example, the infrared light may beassociated with a coherence length of approximately 30 micrometers (μm).Other light wavelengths and/or other coherence lengths may be utilized.OLCR device 166 may perform multiple scans of eye 122. For example, OLCRdevice 166 may perform multiple scans of eye 122 to determine each ofmeasurements 210, 212, and 214, among others.

Turning now to FIG. 3A, a second example of a medical system isillustrated. As shown, a surgeon 310 may utilize surgical toolingequipment 320. In one example, surgeon 310 may utilize surgical toolingequipment 320 in a surgery involving eye 122 of patient 120. A medicalsystem 300A may include an ophthalmic surgical tool tracking system. Asillustrated, medical system 300A may include a computer system 330, adisplay 340, and a microscope integrated display (MID) 350.

Computer system 330 may receive image frames captured by one or moreimage sensors. For example, computer system 330 may perform variousimage processing on the one or more image frames. Computer system 330may perform image analysis on the one or more image frames to identifyand/or extract one or more images of surgical tooling equipment 320 fromthe one or more image frames. Computer system 330 may generate agraphical user interface (GUI), which may overlay the one or more imageframes. For example, the GUI may include one or more indicators and/orone or more icons, among others. The one or more indicators may includesurgical data, such as one or more positions and/or one or moreorientations. The one or more indicators may include one or morewarnings. The GUI may be displayed by display 340 and/or MID 350 tosurgeon 310 and/or other medical personnel.

Computer system 330, display 340, and MID 350 may be implemented inseparate housings communicatively coupled to one another or within acommon console or housing. A user interface may be associated with oneor more of computer system 330, display 340, and MID 350, among others.For example, a user interface may include one or more of a keyboard, amouse, a joystick, a touchscreen, an eye tracking device, a speechrecognition device, a gesture control module, dials, and/or buttons,among other input devices. A user (e.g., surgeon 310 and/or othermedical personnel) may enter desired instructions and/or parameters viathe user interface. For example, the user interface may be utilized incontrolling one or more of computer system 330, display 340, and MID350, among others.

Turning now to FIG. 3B, another example of a medical system isillustrated. As shown, a surgeon 310 may utilize a system 300B. Forexample, surgeon 310 may utilize system 300B in a surgery involving eye122 of patient 120. System 300B may include multiple systems. As shown,system 300B may include a cutting system 315A. For example, surgeon 310may utilize system 315A in cutting eye 122. Eye 122 may include a flapin a cornea of an eye of patient 120. As illustrated, system 300B mayinclude a shaping system 315B. For example, surgeon 310 may utilizeshaping system 315B in performing ablation on an interior part of thecornea of patient 340.

As shown, system 315A may include a display 340A. As illustrated, system315A may include a microscope display 350A. For example, microscopedisplay 350A may include a MID. System 315A may include one or more ofimage sensors 160A-160C, one or more of light projectors 162A-162C, oneor more of depth sensors 164A-164C, OLCR device 166, and/or wavefrontdevice 168, among others. As illustrated, system 315B may include adisplay 340B. As shown, system 315B may include a microscope display350B. For example, microscope display 350B may include a MID. System315B may include one or more of image sensors 160A-160C, one or more oflight projectors 162A-162C, one or more of depth sensors 164A-164C, OLCRdevice 166, and/or wavefront device 168, among others.

System 315A may include a laser, such as a femtosecond laser, which mayuse short laser pulses to ablate a series of small portions of cornealtissue to form a flap that may be lifted up to expose an interior partof the cornea. The flap may be planned and cut using one or both ofcutting device displays 340A and 350A, along with control devices and acomputer system 330A. As shown, system 315A may include computer system330A. For example, computer system 330A may be coupled to one or more ofimage sensors 160A-160C, one or more of light projectors 162A-162C, oneor more of depth sensors 164A-164C, OLCR device 166, and/or wavefrontdevice 168, among others, of system 315A. As illustrated, system 315Bmay include computer system 330B. For example, computer system 330B maybe coupled to one or more of image sensors 160A-160C, one or more oflight projectors 162A-162C, one or more of depth sensors 164A-164C, OLCRdevice 166, and/or wavefront device 168, among others, of system 315B.

Systems 315A and 315B may be physically separated as shown in FIG. 3B.Patient 120 may be moved between systems 315A and 315B. Alternatively,patient 120 may remain stationary and systems 315A and 315B may be movedto patient 120. Systems 315A and 315B may be physically combined into asingle unitary device, such that neither the device nor patient 120 isrepositioned when switching between systems 315A and 315B.

System 300B may include one or more control devices for controllingsystems 315A and 315B. For example, the one or more control devices mayinclude one or more of an interactive display, such as a touchscreendisplay, a keyboard, a mouse, a touchpad, buttons, a joystick, a footpedal, a heads-up display, and virtual-reality glasses, or other devicesable to interact with a user, such as medical personnel.

System 300B may include at least one computer system configured togenerate an image presented on at least one of displays 340A, 350A,340B, and 350B, among others. For example, the at least one computersystem may include one or more of computer systems 330A and 330B. One ormore of computer systems 330A and 330B may be coupled to observationaldevices, such as a microscope, a camera, an optical coherence tomography(OCT) device or display, or another device able to measure the positionof the eye undergoing surgery. One or more of computer systems 330A and330B may be coupled to one or more of the control devices.

In one example, cutting device computer system 330A: i) may be coupledto observational devices that observe the eye when patient 120 ispositioned with system 315A, ii) may provide graphical informationregarding the planned flap location and the planned area of ablation toone or more of displays 340A and 350A, and iii) may be coupled to one ormore control devices of system 315A. In a second example, shaping devicecomputer 330B: i) may be coupled to observational devices that observethe eye when patient 120 is positioned with a shaping device, ii) mayprovide graphical information regarding the planned flap location andthe planned area of ablation to one or more of displays 340B and 350B,and iii) may be coupled to one or more control devices of system 315B.In another example, a computer system may include the properties and/orthe attributes described above with respect to computer systems 330A and330B.

A computer system of a system 300 may be coupled to another part ofsystem 300 in a wired fashion or in a wireless fashion. One of more ofcomputer systems of system 300 may be coupled to a database, storedlocally, on a remote computer system or a remote data center, or boththat store patient data, treatments plans, and/or other informationassociated with medical treatments and/or system 300. In one example,the database may include a relational database. In a second example, thedatabase may include a graph database. In another example, the databasemay include a “Not Only SQL” (NoSQL) database.

System 300 may enter information regarding a patient and the treatmentto be performed on that patient or actually performed on that patient.System 300 may allow a user to enter and view information regarding apatient and the treatment to be performed on that patient. Such data mayinclude information about the patient, such as identifying information,the patient's medical history, and information about eye 122 beingtreated. Such data may include information about the treatment plans,such as the shape and location of a corneal cut and a shape and locationof ablation, among others.

Turning now to FIG. 3C, an example of a microscope integrated displayand examples of surgical tooling equipment are illustrated. As shown,surgical tooling equipment 320A may be or include a scalpel. Asillustrated, surgical tooling equipment 320B may be or include a Q-tip.As shown, surgical tooling equipment 320C may be or include tweezers.Other surgical tooling equipment that is not specifically illustratedmay be utilized with one or more systems, one or more processes, and/orone or more methods described herein.

As an example, surgical tooling equipment 320 may be marked with one ormore patterns. The one or more patterns may be utilized in identifyingsurgical tooling equipment 320. The one or more patterns may include oneor more of a hash pattern, a stripe pattern, and a fractal pattern,among others. As another example, surgical tooling equipment 320 may bemarked with a dye and/or a paint. The dye and/or the paint may reflectone or more of visible light, infrared light, and ultraviolet light,among others. In one example, an illuminator 378 may provide ultravioletlight, and image sensor 372 may receive the ultraviolet light reflectedfrom surgical tooling equipment 320. Computer system 330 may receiveimage data, based at least on the ultraviolet light reflected fromsurgical tooling equipment 320, from image sensor 372 and may utilizethe image data, based at least on the ultraviolet light reflected fromsurgical tooling equipment 320, to identify surgical tooling equipment320 from other image data provided by image sensor 372. In anotherexample, an illuminator 378 may provide infrared light, and image sensor372 may receive the infrared light reflected from surgical toolingequipment 320. Computer system 330 may receive image data, based atleast on the infrared light reflected from surgical tooling equipment320, from image sensor 372 and may utilize the image data, based atleast on the infrared light reflected from surgical tooling equipment320, to identify surgical tooling equipment 320 from other image dataprovided by image sensor 372.

As illustrated, MID 350 may include displays 362A and 362B. For example,surgeon 310 may look into multiple eye pieces, and displays 362A and362B may display information to surgeon 310. Although MID 350 is shownwith multiple displays, MID 350 may include a single display 362. Forexample, MID 350 may be implemented with one or more displays 362. Asshown, MID 350 may include image sensors 372A and 372B. In one example,image sensors 372A and 372B may acquire images. In a second example,image sensors 372A and 372B may include cameras. In another example, animage sensor 372 may acquire images via one or more of visible light,infrared light, and ultraviolet light, among others. One or more imagesensors 372A and 372B may provide data of images to computer system 330.Although MID 350 is shown with multiple image sensors, MID 350 mayinclude a single image sensor 372. For example, MID 350 may beimplemented with one or more image sensors 372.

As illustrated, MID 350 may include distance sensors 374A and 374. Forexample, a distance sensor 374 may determine a distance to surgicaltooling equipment 320. Distance sensor 374 may determine a distanceassociated with a Z-axis. Although MID 350 is shown with multiple imagesensors, MID 350 may include a single distance sensor 374. In oneexample, MID 350 may be implemented with one or more distance sensors374. In another example, MID 350 may be implemented with no distancesensor. As shown, MID 350 may include lenses 376A and 376B. Although MID350 is shown with multiple lenses 376A and 376B, MID 350 may include asingle lens 376. For example, MID 350 may be implemented with one ormore lenses 376. As illustrated, MID 350 may include illuminators 378Aand 378B. For example, an illuminator 378 may provide and/or produce oneor more of visible light, infrared light, and ultraviolet light, amongothers. Although MID 350 is shown with multiple illuminators, MID 350may include a single illuminator 378. For example, MID 350 may beimplemented with one or more illuminators 378. MID 350 may include oneor more structures and/or one or more functionalities as those describedwith reference to biometry device 114. In one example, MID 350 mayinclude OLCR device 166. In another example, MID 350 may includewavefront device 168.

System 300 may identify a patient. For example, system 300 may identifypatient 120. System 300 may identify a patient to avoid a performance ofan incorrect medical procedure to the patient. For example, system 300may identify the patient to avoid a performance of a medical procedure,which was designated for another patient, to the patient.

A GUI 410, illustrated in FIG. 4A, may provide a warning or an errorthat an incorrect patient has been identified. In one example, thewarning or the error may include an icon 420A. In a second example, thewarning or the error may include text 430A, which may indicate that anincorrect patient has been detected. GUI 410 may be displayed viadisplay 340 and/or MID 350. In another example, the warning or the errormay include one or more audible sounds. GUI 410, illustrated in FIG. 4B,may provide the indication that the patient has been correctlyidentified. In one example, the indication may include an icon 420B. Inanother example, the indication may include text 430B, which mayindicate that the patient has been correctly identified. GUI 410 may bedisplayed via display 340 and/or MID 350.

System 300 may identify an eye of a patient. In one example, system 300may identify eye 122. In another example, system 300 may identify eye124. System 300 may not identify an eye of a patient. In one example, ifsystem 300 does not identify an eye of a patient, system 300 may provideinformation that indicates that the eye of the patient was notidentified. In a second example, if system 300 does not identify an eyeof a patient, system 300 may deny access of one or more portions ofsystem 300. In another example, if system 300 does not identify an eyeof a patient, system 300 may deny access of one or more functionalitiesof system 300.

GUI 410, illustrated in FIG. 4C, may provide a warning or an error thatan incorrect eye has been identified. In one example, the warning or theerror may include an icon 420C. In a second example, the warning or theerror may include text 430C, which may indicate that an incorrect eyehas been detected. GUI 410 may be displayed via display 340 and/or MID350. In another example, the warning or the error may include one ormore audible sounds. GUI 410, illustrated in FIG. 4D, may provide anindication that the eye has been correctly identified. In one example,the indication may include an icon 420D. In another example, theindication may include text 430D, which may indicate that the eye hasbeen correctly identified. GUI 410 may be displayed via display 340and/or MID 350.

System 300 may repeat identifying an eye of a patient. In one example,system 300 may identify an eye of patient 120 when surgeon 310 performsat least a first portion of a medical procedure utilizing system 315A.In another example, system 300 may identify an eye of patient 120 whensurgeon 310 performs at least a second portion of the medical procedureutilizing system 315B. The medical procedure may be for eye 122. In oneexample, the first portion of the medical procedure may be performedutilizing system 315A. In another example, the second portion of themedical procedure may be performed utilizing system 315B. System 300 maydetermine if eye 122 is identified before the second portion of themedical procedure is to be performed utilizing system 315B. For example,system 300 may determine if eye 122 is identified before the secondportion of the medical procedure is to be performed utilizing system315B so that the second portion of the medical procedure may not beperformed on eye 124.

System 300 may determined if surgical tooling equipment is utilized witha correct eye during a medical procedure (e.g., a surgical procedure).In one example, system 300 may determine that surgical tooling equipment320 may not be utilized on eye 124, as illustrated in FIG. 5A. System300 may identify eye 124 and may determine that surgical toolingequipment 320 may not be utilized with eye 124. System 300 may notidentify an eye and may determine that surgical tooling equipment 320may not be utilized with the eye that was not identified. In anotherexample, system 300 may determine that surgical tooling equipment 320may be utilized with eye 122, as illustrated in FIG. 5B. System 300 mayidentify eye 122 and may determine that surgical tooling equipment 320may be utilized with eye 122.

A GUI 510, illustrated in FIG. 5C, may provide a warning that surgicaltooling equipment 320 is not to be utilized with an incorrect eye. Inone example, the warning may include an icon 520A. In a second example,the warning may include text 530A, which may indicate that surgicaltooling equipment 320 has been detected in an incorrect eye. GUI 510 maybe displayed via display 340 and/or MID 350. A warning that surgicaltooling equipment 320 is not to be utilized with an incorrect eye mayinclude one or more audible sounds.

GUI 510, illustrated in FIG. 5D, may provide an indication that surgicaltooling equipment 320 may be utilized with eye 122. In one example, theindication may include an icon 520B. In another example, the indicationmay include text 530B, which may indicate that no errors have beendetected. GUI 510 may be displayed via display 340 and/or MID 350.

Turning now to FIG. 6 , an example of a computer system is illustrated.As shown, a computer system 600 may include a processor 610, a volatilememory medium 620, a non-volatile memory medium 630, and an input/output(I/O) device 640. As illustrated, volatile memory medium 620,non-volatile memory medium 630, and I/O device 640 may becommunicatively coupled to processor 610.

The term “memory medium” may mean a “memory”, a “storage device”, a“memory device”, a “computer-readable medium”, and/or a “tangiblecomputer readable storage medium”. For example, a memory medium mayinclude, without limitation, storage media such as a direct accessstorage device, including a hard disk drive, a sequential access storagedevice, such as a tape disk drive, compact disk (CD), random accessmemory (RAM), read-only memory (ROM), CD-ROM, digital versatile disc(DVD), electrically erasable programmable read-only memory (EEPROM),flash memory, non-transitory media, and/or one or more combinations ofthe foregoing. As shown, non-volatile memory medium 630 may includeprocessor instructions 632. Processor instructions 632 may be executedby processor 610. In one example, one or more portions of processorinstructions 632 may be executed via non-volatile memory medium 630. Inanother example, one or more portions of processor instructions 632 maybe executed via volatile memory medium 620. One or more portions ofprocessor instructions 632 may be transferred to volatile memory medium620.

Processor 610 may execute processor instructions 632 in implementing atleast a portion of one or more systems, one or more flow charts, one ormore processes, and/or one or more methods described herein. Forexample, processor instructions 632 may be configured, coded, and/orencoded with instructions in accordance with at least a portion of oneor more systems, one or more flowcharts, one or more methods, and/or oneor more processes described herein. Although processor 610 isillustrated as a single processor, processor 610 may be or includemultiple processors. One or more of a storage medium and a memory mediummay be a software product, a program product, and/or an article ofmanufacture. For example, the software product, the program product,and/or the article of manufacture may be configured, coded, and/orencoded with instructions, executable by a processor, in accordance withat least a portion of one or more systems, one or more flowcharts, oneor more methods, and/or one or more processes described herein.

Processor 610 may include any suitable system, device, or apparatusoperable to interpret and execute program instructions, process data, orboth stored in a memory medium and/or received via a network. Processor610 further may include one or more microprocessors, microcontrollers,digital signal processors (DSPs), application specific integratedcircuits (ASICs), or other circuitry configured to interpret and executeprogram instructions, process data, or both.

I/O device 640 may include any instrumentality or instrumentalities,which allow, permit, and/or enable a user to interact with computersystem 600 and its associated components by facilitating input from auser and output to a user. Facilitating input from a user may allow theuser to manipulate and/or control computer system 600, and facilitatingoutput to a user may allow computer system 600 to indicate effects ofthe user's manipulation and/or control. For example, I/O device 640 mayallow a user to input data, instructions, or both into computer system600, and otherwise manipulate and/or control computer system 600 and itsassociated components. I/O devices may include user interface devices,such as a keyboard, a mouse, a touch screen, a joystick, a handheldlens, a tool tracking device, a coordinate input device, or any otherI/O device suitable to be used with a system.

I/O device 640 may include one or more busses, one or more serialdevices, and/or one or more network interfaces, among others, that mayfacilitate and/or permit processor 610 to implement at least a portionsof one or more systems, processes, and/or methods described herein. Inone example, I/O device 640 may include a storage interface that mayfacilitate and/or permit processor 610 to communicate with an externalstorage. The storage interface may include one or more of a universalserial bus (USB) interface, a SATA (Serial ATA) interface, a PATA(Parallel ATA) interface, and a small computer system interface (SCSI),among others. In a second example, I/O device 640 may include a networkinterface that may facilitate and/or permit processor 610 to communicatewith a network. I/O device 640 may include one or more of a wirelessnetwork interface and a wired network interface. In a third example, I/Odevice 640 may include one or more of a peripheral componentinterconnect (PCI) interface, a PCI Express (PCIe) interface, a serialperipheral interconnect (SPI) interface, and an inter-integrated circuit(I²C) interface, among others. In a fourth example, I/O device 640 mayinclude circuitry that may permit processor 610 to communicate data withone or more sensors. In a fifth example, I/O device 640 may facilitateand/or permit processor 610 to communicate data with one or more of adisplay 650 and a MID 660, among others. In another example, I/O device640 may facilitate and/or permit processor 610 to communicate data withan imaging device 670. As illustrated, I/O device 640 may be coupled toa network 680. For example, I/O device 640 may include a networkinterface.

Network 680 may include a wired network, a wireless network, an opticalnetwork, or a combination of the foregoing, among others. Network 680may include and/or be coupled to various types of communicationsnetworks. For example, network 680 may include and/or be coupled to alocal area network (LAN), a wide area network (WAN), an Internet, apublic switched telephone network (PSTN), a cellular telephone network,a satellite telephone network, or a combination of the foregoing, amongothers. A WAN may include a private WAN, a corporate WAN, a public WAN,or a combination of the foregoing, among others.

A computer system described herein may include one or more structuresand/or one or more functionalities as those described with reference tocomputer system 600. In one example, computer system 112 may include oneor more structures and/or one or more functionalities as those describedwith reference to computer system 600. In a second example, computersystem 330 may include one or more structures and/or one or morefunctionalities as those described with reference to computer system600. In another example, a computer system of MID 350 may include one ormore structures and/or one or more functionalities as those describedwith reference to computer system 600.

Turning now to FIGS. 7A and 7B, an example of a method of operating amedial system is illustrated. At 710, an identification of a firstpatient may be received. For example, computer system 330 may receive anidentification of a first patient. The first patient may be patient 120.The identification of the first patient may include a name of the firstpatient. The identification of the first patient may include a number ora string of characters associated with the first patient.

At 715, first eye identification information that includes firstmultiple iris structures associated with a first eye of the firstpatient may be retrieved based at least on the identification of thefirst patient. For example, the first multiple iris structures mayinclude multiple of iris structures 134A-134C. The first eyeidentification information may include pattern of blood vessels 132. Thefirst eye identification information may include one or more ofmeasurements 210A, 212A, 214A, 210B, 212B, 214B, 210C, 212C, and 214C,among others. The first eye identification information may include oneor more of measurements 810-814, among others, illustrated in FIGS. 8Aand 8B. The first eye identification information may include one or moreof measurements θ₁ and θ₂, among others, illustrated in FIGS. 8A and 8B.For example, measurements θ₁ and θ₂ may be angular measurements. Anangular measurement may be measured in degrees, radians, etc.

At 720, second multiple iris structures of an eye of a current patientmay be determined. In one example, an eye of a current patient may be aneye 822, illustrated in FIGS. 8C and 8D. Multiple of iris structures834A-834C of eye 822 may be determined. In another example, an eye of acurrent patient may be an eye 824, illustrated in FIGS. 8E and 8F.Multiple of iris structures 836A-836C of eye 824 may be determined.

At 725, at least one distance measurement of the eye of the currentpatient may be determined. In one example, the at least one distancemeasurement of the eye of the current patient may include a distancemeasurement 850A from a cornea 860 of eye 822 to a lens 862 of eye 822,as illustrated in FIG. 8G. In a second example, the at least onedistance measurement of the eye of the current patient may include adistance measurement 852A of lens 862, as illustrated in FIG. 8G. In athird example, the at least one distance measurement of the eye of thecurrent patient may include a distance measurement 854A from lens 862 ofeye 822 to a retina 864 of eye 822. Measurements 850A, 852A, and 854Amay be on axis measurements.

In a fourth example, the at least one distance measurement of the eye ofthe current patient may include a distance measurement 850B from cornea860 of eye 822 to lens 862 of eye 822, as illustrated in FIG. 8H. In afifth example, the at least one distance measurement of the eye of thecurrent patient may include a distance measurement 852B of lens 862, asillustrated in FIG. 8H. In a sixth example, the at least one distancemeasurement of the eye of the current patient may include a distancemeasurement 854B from lens 862 of eye 822 to retina 864 of eye 822, asillustrated in FIG. 8H. Measurements 850B, 852B, and 854B may be offaxis measurements. Measurements 850B, 852B, and 854B may be off an axis870.

In a seventh example, the at least one distance measurement of the eyeof the current patient may include a distance measurement 850C fromcornea 860 of eye 822 to lens 862 of eye 822, as illustrated in FIG. 8I.In an eighth example, the at least one distance measurement of the eyeof the current patient may include a distance measurement 852C of lens862, as illustrated in FIG. 8I. In a ninth example, the at least onedistance measurement of the eye of the current patient may include adistance measurement 854C from lens 862 of eye 822 to retina 864 of eye822, as illustrated in FIG. 8I. Measurements 850C, 852C, and 854C may beoff axis measurements. Measurements 850C, 852C, and 854C may be off axis870.

In a tenth example, the at least one distance measurement of the eye ofthe current patient may include a distance measurement 880A from acornea 861 of eye 824 to a lens 863 of eye 824, as illustrated in FIG.8J. In an eleventh example, the at least one distance measurement of theeye of the current patient may include a distance measurement 882A oflens 863, as illustrated in FIG. 8J. In a twelfth example, the at leastone distance measurement of the eye of the current patient may include adistance measurement 884A from lens 863 of eye 824 to a retina 865 ofeye 824, as illustrated in FIG. 8J. Measurements 880A, 882A, and 884Amay be on axis measurements.

In a thirteenth example, the at least one distance measurement of theeye of the current patient may include a distance measurement 880B fromcornea 861 of eye 824 to lens 863 of eye 824, as illustrated in FIG. 8K.In a fourteenth example, the at least one distance measurement of theeye of the current patient may include a distance measurement 882B oflens 863, as illustrated in FIG. 8K. In a fifteenth example, the atleast one distance measurement of the eye of the current patient mayinclude a distance measurement 884B from lens 863 of eye 824 to retina865 of eye 824, as illustrated in FIG. 8K. Measurements 880B, 882B, and884B may be off axis measurements. Measurements 880B, 882B, and 884B maybe off an axis 871.

In a sixteenth example, the at least one distance measurement of the eyeof the current patient may include a distance measurement 880C fromcornea 861 of eye 824 to lens 863 of eye 824, as illustrated in FIG. 8L.In a seventeenth example, the at least one distance measurement of theeye of the current patient may include a distance measurement 882C oflens 863, as illustrated in FIG. 8L. In an eighteenth example, the atleast one distance measurement of the eye of the current patient mayinclude a distance measurement 884C from lens 863 of eye 824 to retina865 of eye 824, as illustrated in FIG. 8L. Measurements 880C, 882C, and884C may be off axis measurements. Measurements 880C, 882C, and 884C maybe off axis 871.

At 730, an angle between a first iris structure of the second multipleiris structures and a second iris structure of the second multiple irisstructures may be determined. Determining an angle between a first irisstructure of the second multiple iris structures and a second irisstructure of the second multiple iris structures may include determiningan angle between a first iris structure of the second multiple irisstructures and a second iris structure of the second multiple irisstructures with respect to a center of a pupil of the eye of the currentpatient.

In one example, determining an angle between a first iris structure ofthe second multiple iris structures and a second iris structure of thesecond multiple iris structures with respect to a center of a pupil ofthe eye of the current patient may include an angle θ₃ between irisstructures 834A and 834B of eye 822, as illustrated in FIG. 8C. In asecond example, determining an angle between a first iris structure ofthe second multiple iris structures and a second iris structure of thesecond multiple iris structures with respect to a center of a pupil ofthe eye of the current patient may include an angle θ₄ between irisstructures 834A and 834C of eye 822, as illustrated in FIG. 8D. In athird example, determining an angle between a first iris structure ofthe second multiple iris structures and a second iris structure of thesecond multiple iris structures with respect to a center of a pupil ofthe eye of the current patient may include an angle θ₅ between irisstructures 836A and 836B of eye 824, as illustrated in FIG. 8E. Inanother example, determining an angle between a first iris structure ofthe second multiple iris structures and a second iris structure of thesecond multiple iris structures with respect to a center of a pupil ofthe eye of the current patient may include an angle θ₆ between irisstructures 836A and 836C of eye 824, as illustrated in FIG. 8F.

At 735, a distance between the first iris structure of the secondmultiple iris structures and the center of the pupil of the eye of thecurrent patient may be determined. In one example, a distance 810between iris structure 834A and a center of a pupil of eye 822 may bedetermined. In another example, a distance 840 between iris structure836A and a center of a pupil of eye 824 may be determined.

At 740, a distance between the second iris structure of the secondmultiple iris structures and the center of the pupil of the eye of thecurrent patient may be determined. In one example, a distance 812between iris structure 834B and the center of a pupil of eye 822 may bedetermined. In another example, a distance 842 between iris structure836B and the center of a pupil of eye 824 may be determined.

At 745, a distance between a third iris structure of the second multipleiris structures and the center of the pupil of the eye of the currentpatient may be determined. In one example, a distance 814 between irisstructure 834C and the center of the pupil of eye 822 may be determined.In another example, a distance 844 between iris structure 836C and thecenter of a pupil of eye 824 may be determined.

At 750, it may be determined if the second multiple iris structuresmatch the first multiple iris structures. If the second multiple irisstructures do not match the first multiple iris structures, anindication that the first eye has not been correctly identified may beprovided, at 755. In one example, providing an indication that the firsteye has not been correctly identified may include providing one or moreof icon 420C and text 430C, among others. In another example, providingan indication that the first eye has not been correctly identified mayinclude providing one or more audible sounds. Providing the one or moreaudible sounds may include providing one or more audible alert and/orwarning sounds.

If the second multiple iris structures match the first multiple irisstructures, it may be determined if the at least one distancemeasurement of the eye of the current patient matches the at least onedistance measurement associated with the first eye, at 760. In oneexample, determining if at least one distance measurement of the eye ofthe current patient matches at least one distance measurement associatedwith the first eye may include determining if a distance of distances850-854 matches a respective distance of distances 210-214. In anotherexample, determining if at least one distance measurement of the eye ofthe current patient matches at least one distance measurement associatedwith the first eye may include determining if a distance of distances880-884 matches a respective distance of distances 210-214.

If the at least one distance measurement of the eye of the currentpatient does not match the at least one distance measurement associatedwith the first eye, the method may proceed to 755. If the at least onedistance measurement of the eye of the current patient matches the atleast one distance measurement associated with the first eye, anindication that the first eye has been correctly identified may beprovided. For example, one or more of icon 420D and text 430D, amongothers, may be provided.

At 770, medical procedure information may be retrieved based at least onone of the identification of the first patient and the second multipleiris structures of the eye of the current patient. For example, system300 may retrieve medical procedure information from a database. System300 may retrieve the medical procedure information from a database basedat least on one of the identification of the first patient and thesecond multiple iris structures of the eye of the current patient. Inone example, the database may key multiple medical procedure informationby identifications of patients. In another example, the database may keymultiple medical procedure information by iris structures of respectiveeyes of respective patients.

At 775, the medical procedure information may be provided via at leastone of a display and a microscope integrated display. For example, themedical procedure information may include steps of a medical procedure.The steps of the medical procedure may include an ordered series ofsteps of the medical procedure.

One or more of the method and/or process elements and/or one or moreportions of a method and/or processor elements may be performed invarying orders, may be repeated, or may be omitted. Furthermore,additional, supplementary, and/or duplicated method and/or processelements may be implemented, instantiated, and/or performed as desired.Moreover, one or more of system elements may be omitted and/oradditional system elements may be added as desired.

A memory medium may be and/or may include an article of manufacture. Forexample, the article of manufacture may include and/or may be a softwareproduct and/or a program product. The memory medium may be coded and/orencoded with processor-executable instructions in accordance with one ormore flowcharts, systems, methods, and/or processes described herein toproduce the article of manufacture.

The above disclosed subject matter is to be considered illustrative, andnot restrictive, and the appended claims are intended to cover all suchmodifications, enhancements, and other implementations which fall withinthe true spirit and scope of the present disclosure. Thus, to themaximum extent allowed by law, the scope of the present disclosure is tobe determined by the broadest permissible interpretation of thefollowing claims and their equivalents, and shall not be restricted orlimited by the foregoing detailed description.

What is claimed is:
 1. A medical system, comprising: at least oneprocessor; and a memory medium that is coupled to the at least oneprocessor and that includes instructions, when executed by the at leastone processor, cause the medical system to: receive an identification ofa first patient; retrieve, based at least on the identification of thefirst patient, first eye identification information that includes afirst plurality of iris structures associated with a first eye of thefirst patient, the first eye identification information further includesat least one distance measurement associated with the first eye;determine a second plurality of iris structures of an eye of a currentpatient; determine at least one distance measurement of the eye of thecurrent patient; determine if the second plurality of iris structuresmatch the first plurality of iris structures; determine if the at leastone distance measurement of the eye of the current patient matches theat least one distance measurement associated with the first eye; if thesecond plurality of iris structures match the first plurality of irisstructures and if the at least one distance measurement of the eye ofthe current patient matches the at least one distance measurementassociated with the first eye, provide an indication that the first eyehas been correctly identified; and if the second plurality of irisstructures do not match the first plurality of iris structures or if theat least one distance measurement of the eye of the current patient doesnot match the at least one distance measurement associated with thefirst eye, provide an indication that the first eye has not beencorrectly identified.
 2. The medical system of claim 1, wherein: the atleast one distance measurement associated with the first eye includes atleast one of a distance measurement from a cornea of the first eye to alens of the first eye, a distance measurement from a lens of the firsteye to a retina of the first eye, a corneal thickness of the first eye,and a lens thickness of the first eye; and the at least one distancemeasurement associated with the eye of the current patient includes atleast one of a distance measurement from a cornea of the eye of thecurrent patient to a lens of the eye of the current patient, a distancemeasurement from a lens of the eye of the current patient to a retina ofthe eye of the current patient, a corneal thickness of the eye of thecurrent patient, and a lens thickness of the eye of the current patient.3. The medical system of claim 1, wherein the instructions further causethe medical system to: retrieve medical procedure information based atleast on one of the identification of the first patient and the secondplurality of iris structures of the eye of the current patient.
 4. Themedical system of claim 3, wherein the instructions further cause themedical system to: provide, via at least one of a display and amicroscope integrated display, the medical procedure information.
 5. Themedical system of claim 1, wherein: a first iris structure of the firstplurality of iris structures is separated from a second iris structureof the first plurality of iris structures by a first angle with respectto a center of a pupil of the first eye; a first iris structure of thesecond plurality of iris structures is separated from a second irisstructure of the second plurality of iris structures by a second anglewith respect to a center of a pupil of the eye of the current patient;and to determine if the second plurality of iris structures match thefirst plurality of iris structures, the instructions further cause themedical system to determine if second angle matches the first angle. 6.The medical system of claim 5, wherein: the first iris structure of thefirst plurality of iris structures is at a first distance from thecenter of the pupil of the first eye; the first iris structure of thesecond plurality of iris structures is at a second distance from thecenter of the pupil of the eye of the current patient; and to determineif the second plurality of iris structures match the first plurality ofiris structures, the instructions further cause the medical system todetermine if the second distance matches the first distance.
 7. Themedical system of claim 1, wherein: the current patient is the firstpatient; and the eye of the current patient is a second eye of the firstpatient, different from the first eye.
 8. A method of operating amedical system, comprising: receiving an identification of a firstpatient; retrieving, based at least on the identification of the firstpatient, first eye identification information that includes a firstplurality of iris structures associated with a first eye of the firstpatient; the first eye identification information further includes atleast one distance measurement associated with the first eye;determining a second plurality of iris structures of an eye of a currentpatient; determining at least one distance measurement of the eye of thecurrent patient; determining if the second plurality of iris structuresmatch the first plurality of iris structures; determining if the atleast one distance measurement of the eye of the current patient matchesthe at least one distance measurement associated with the first eye; ifthe second plurality of iris structures match the first plurality ofiris structures and if the at least one distance measurement of the eyeof the current patient matches the at least one distance measurementassociated with the first eye, providing an indication that the firsteye has been correctly identified; and if the second plurality of irisstructures do not match the first plurality of iris structures or if theat least one distance measurement of the eye of the current patient doesnot match the at least one distance measurement associated with thefirst eye, providing an indication that the first eye has not beencorrectly identified.
 9. The method of claim 8, wherein: the at leastone distance measurement associated with the first eye includes at leastone of a distance measurement from a cornea of the first eye to a lensof the first eye, a distance measurement from a lens of the first eye toa retina of the first eye, a corneal thickness of the first eye, and alens thickness of the first eye; and the at least one distancemeasurement associated with the eye of the current patient includes atleast one of a distance measurement from a cornea of the eye of thecurrent patient to a lens of the eye of the current patient, a distancemeasurement from a lens of the eye of the current patient to a retina ofthe eye of the current patient, a corneal thickness of the eye of thecurrent patient, and a lens thickness of the eye of the current patient.10. The method of claim 8, further comprising: retrieving medicalprocedure information based at least on one of the identification of thefirst patient and the second plurality of iris structures of the eye ofthe current patient.
 11. The method of claim 10, further comprising:providing, via at least one of a display and a microscope integrateddisplay, the medical procedure information.
 12. The method of claim 8,wherein: a first iris structure of the first plurality of irisstructures is separated from a second iris structure of the firstplurality of iris structures by an first angle with respect to a centerof a pupil of the first eye; a first iris structure of the secondplurality of iris structures is separated from a second iris structureof the second plurality of iris structures by a second angle withrespect to a center of a pupil of the eye of the current patient; andthe determining if the second plurality of iris structures match thefirst plurality of iris structures includes determining if second anglematches the first angle.
 13. The method of claim 12, wherein: the firstiris structure of the first plurality of iris structures is at a firstdistance from the center of the pupil of the first eye; the first irisstructure of the second plurality of iris structures is at a seconddistance from the center of the pupil of the eye of the current patient;and the determining if the second plurality of iris structures match thefirst plurality of iris structures includes determining if the seconddistance matches the first distance.
 14. The method of claim 8, wherein:the current patient is the first patient; and the eye of the currentpatient is a second eye of the first patient, different from the firsteye.